Behemoth must have been as bored as I was today, because he left his zone and headed through Ronf towards Sandy.
I guess he needed something at the AH? (I was sad I couldn't get a better shot, but I needed to keep the camera above him or else it ended up inside his body.)
After slaying Behemoth and saving Sandy, I went back out to Ronf to relax, but ran into another HNM. Eek! Sandy just isn't that safe of a neighborhood anymore!